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11f80c |
From b24351183ec574f81c729cbb3286aceaee3f03c8 Mon Sep 17 00:00:00 2001
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11f80c |
From: Tomas Hozza <thozza@redhat.com>
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11f80c |
Date: Mon, 30 Jul 2018 12:20:27 +0200
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11f80c |
Subject: [PATCH 1/6] * src/ftp.c (getftp): Fix RESOURCE LEAK found by Coverity
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11f80c |
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11f80c |
Error: RESOURCE_LEAK (CWE-772):
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11f80c |
wget-1.19.5/src/ftp.c:1493: alloc_fn: Storage is returned from allocation function "fopen".
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11f80c |
wget-1.19.5/src/ftp.c:1493: var_assign: Assigning: "fp" = storage returned from "fopen(con->target, "wb")".
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11f80c |
wget-1.19.5/src/ftp.c:1811: leaked_storage: Variable "fp" going out of scope leaks the storage it points to.
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11f80c |
\# 1809| if (fp && !output_stream)
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11f80c |
\# 1810| fclose (fp);
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11f80c |
\# 1811|-> return err;
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11f80c |
\# 1812| }
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11f80c |
\# 1813|
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11f80c |
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11f80c |
It can happen, that "if (!output_stream || con->cmd & DO_LIST)" on line #1398 can be true, even though "output_stream != NULL". In this case a new file is opened to "fp". Later it may happen in the FTPS branch, that some error will occure and code will jump to label "exit_error". In "exit_error", the "fp" is closed only if "output_stream == NULL". However this may not be true as described earlier and "fp" leaks.
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11f80c |
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11f80c |
On line #1588, there is the following conditional free of "fp":
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11f80c |
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11f80c |
/* Close the local file. */
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11f80c |
if (!output_stream || con->cmd & DO_LIST)
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11f80c |
fclose (fp);
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11f80c |
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11f80c |
Therefore the conditional at the end of the function after "exit_error" label should be modified to:
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11f80c |
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11f80c |
if (fp && (!output_stream || con->cmd & DO_LIST))
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11f80c |
fclose (fp);
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11f80c |
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11f80c |
This will ensure that "fp" does not leak in any case it sould be opened.
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11f80c |
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11f80c |
Signed-off-by: Tomas Hozza <thozza@redhat.com>
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11f80c |
---
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11f80c |
src/ftp.c | 2 +-
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11f80c |
1 file changed, 1 insertion(+), 1 deletion(-)
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11f80c |
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11f80c |
diff --git a/src/ftp.c b/src/ftp.c
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11f80c |
index 69148936..daaae939 100644
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11f80c |
--- a/src/ftp.c
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11f80c |
+++ b/src/ftp.c
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11f80c |
@@ -1806,7 +1806,7 @@ Error in server response, closing control connection.\n"));
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11f80c |
exit_error:
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11f80c |
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11f80c |
/* If fp is a regular file, close and try to remove it */
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11f80c |
- if (fp && !output_stream)
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11f80c |
+ if (fp && (!output_stream || con->cmd & DO_LIST))
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11f80c |
fclose (fp);
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11f80c |
return err;
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11f80c |
}
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11f80c |
--
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11f80c |
2.17.1
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11f80c |
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11f80c |
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11f80c |
From b8be904ac7c25387672b0aa39f7cba699bffc48e Mon Sep 17 00:00:00 2001
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11f80c |
From: Tomas Hozza <thozza@redhat.com>
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11f80c |
Date: Mon, 30 Jul 2018 15:38:45 +0200
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11f80c |
Subject: [PATCH 2/6] * src/http.c (check_auth): Fix RESOURCE LEAK found by
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11f80c |
Coverity
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11f80c |
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11f80c |
Error: RESOURCE_LEAK (CWE-772):
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11f80c |
wget-1.19.5/src/http.c:2434: alloc_fn: Storage is returned from allocation function "xmalloc".
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11f80c |
wget-1.19.5/lib/xmalloc.c:41:11: alloc_fn: Storage is returned from allocation function "malloc".
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11f80c |
wget-1.19.5/lib/xmalloc.c:41:11: var_assign: Assigning: "p" = "malloc(n)".
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11f80c |
wget-1.19.5/lib/xmalloc.c:44:3: return_alloc: Returning allocated memory "p".
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11f80c |
wget-1.19.5/src/http.c:2434: var_assign: Assigning: "auth_stat" = storage returned from "xmalloc(4UL)".
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11f80c |
wget-1.19.5/src/http.c:2446: noescape: Resource "auth_stat" is not freed or pointed-to in "create_authorization_line".
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11f80c |
wget-1.19.5/src/http.c:5203:70: noescape: "create_authorization_line(char const *, char const *, char const *, char const *, char const *, _Bool *, uerr_t *)" does not free or save its parameter "auth_err".
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11f80c |
wget-1.19.5/src/http.c:2476: leaked_storage: Variable "auth_stat" going out of scope leaks the storage it points to.
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11f80c |
\# 2474| /* Creating the Authorization header went wrong */
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11f80c |
\# 2475| }
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11f80c |
\# 2476|-> }
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11f80c |
\# 2477| else
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11f80c |
\# 2478| {
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11f80c |
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11f80c |
Error: RESOURCE_LEAK (CWE-772):
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11f80c |
wget-1.19.5/src/http.c:2431: alloc_fn: Storage is returned from allocation function "url_full_path".
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11f80c |
wget-1.19.5/src/url.c:1105:19: alloc_fn: Storage is returned from allocation function "xmalloc".
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11f80c |
wget-1.19.5/lib/xmalloc.c:41:11: alloc_fn: Storage is returned from allocation function "malloc".
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11f80c |
wget-1.19.5/lib/xmalloc.c:41:11: var_assign: Assigning: "p" = "malloc(n)".
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11f80c |
wget-1.19.5/lib/xmalloc.c:44:3: return_alloc: Returning allocated memory "p".
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11f80c |
wget-1.19.5/src/url.c:1105:19: var_assign: Assigning: "full_path" = "xmalloc(length + 1)".
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11f80c |
wget-1.19.5/src/url.c:1107:3: noescape: Resource "full_path" is not freed or pointed-to in function "full_path_write".
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11f80c |
wget-1.19.5/src/url.c:1078:47: noescape: "full_path_write(struct url const *, char *)" does not free or save its parameter "where".
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11f80c |
wget-1.19.5/src/url.c:1110:3: return_alloc: Returning allocated memory "full_path".
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11f80c |
wget-1.19.5/src/http.c:2431: var_assign: Assigning: "pth" = storage returned from "url_full_path(u)".
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11f80c |
wget-1.19.5/src/http.c:2446: noescape: Resource "pth" is not freed or pointed-to in "create_authorization_line".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/http.c:5203:40: noescape: "create_authorization_line(char const *, char const *, char const *, char const *, char const *, _Bool *, uerr_t *)" does not free or save its parameter "path".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/http.c:2476: leaked_storage: Variable "pth" going out of scope leaks the storage it points to.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 2474| /* Creating the Authorization header went wrong */
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 2475| }
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 2476|-> }
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 2477| else
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 2478| {
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Both "pth" and "auth_stat" are allocated in "check_auth()" function. These are used for creating the HTTP Authorization Request header via "create_authorization_line()" function. In case the creation went OK (auth_err == RETROK), then the memory previously allocated to "pth" and "auth_stat" is freed. However if the creation failed, then the memory is never freed and it leaks.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Signed-off-by: Tomas Hozza <thozza@redhat.com>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
---
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
src/http.c | 4 ++--
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
1 file changed, 2 insertions(+), 2 deletions(-)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
diff --git a/src/http.c b/src/http.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
index 093be167..4e0d467a 100644
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--- a/src/http.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+++ b/src/http.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -2451,6 +2451,8 @@ check_auth (const struct url *u, char *user, char *passwd, struct response *resp
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
auth_stat);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
auth_err = *auth_stat;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ xfree (auth_stat);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ xfree (pth);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
if (auth_err == RETROK)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
{
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
request_set_header (req, "Authorization", value, rel_value);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -2464,8 +2466,6 @@ check_auth (const struct url *u, char *user, char *passwd, struct response *resp
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
register_basic_auth_host (u->host);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
}
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
- xfree (pth);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
- xfree (auth_stat);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
*retry = true;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
goto cleanup;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
}
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
2.17.1
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
From dfef92bac3997b9848e86d84a843d5d7dde4fd99 Mon Sep 17 00:00:00 2001
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
From: Tomas Hozza <thozza@redhat.com>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Date: Tue, 31 Jul 2018 16:58:12 +0200
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Subject: [PATCH 3/6] * src/http.c (http_loop): Fix RESOURCE LEAK found by
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Coverity
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Error: RESOURCE_LEAK (CWE-772):
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/http.c:4486: alloc_fn: Storage is returned from allocation function "url_string".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2248:3: alloc_fn: Storage is returned from allocation function "xmalloc".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/lib/xmalloc.c:41:11: alloc_fn: Storage is returned from allocation function "malloc".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/lib/xmalloc.c:41:11: var_assign: Assigning: "p" = "malloc(n)".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/lib/xmalloc.c:44:3: return_alloc: Returning allocated memory "p".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2248:3: var_assign: Assigning: "result" = "xmalloc(size)".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2248:3: var_assign: Assigning: "p" = "result".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2250:3: noescape: Resource "p" is not freed or pointed-to in function "memcpy". [Note: The source code implementation of the function has been overridden by a builtin model.]
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2253:7: noescape: Resource "p" is not freed or pointed-to in function "memcpy". [Note: The source code implementation of the function has been overridden by a builtin model.]
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2257:11: noescape: Resource "p" is not freed or pointed-to in function "memcpy". [Note: The source code implementation of the function has been overridden by a builtin model.]
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2264:3: noescape: Resource "p" is not freed or pointed-to in function "memcpy". [Note: The source code implementation of the function has been overridden by a builtin model.]
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2270:7: identity_transfer: Passing "p" as argument 1 to function "number_to_string", which returns an offset off that argument.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/utils.c:1776:11: var_assign_parm: Assigning: "p" = "buffer".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/utils.c:1847:3: return_var: Returning "p", which is a copy of a parameter.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2270:7: noescape: Resource "p" is not freed or pointed-to in function "number_to_string".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/utils.c:1774:25: noescape: "number_to_string(char *, wgint)" does not free or save its parameter "buffer".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2270:7: var_assign: Assigning: "p" = "number_to_string(p, url->port)".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2273:3: noescape: Resource "p" is not freed or pointed-to in function "full_path_write".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:1078:47: noescape: "full_path_write(struct url const *, char *)" does not free or save its parameter "where".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:2287:3: return_alloc: Returning allocated memory "result".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/http.c:4486: var_assign: Assigning: "hurl" = storage returned from "url_string(u, URL_AUTH_HIDE_PASSWD)".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/http.c:4487: noescape: Resource "hurl" is not freed or pointed-to in "logprintf".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/http.c:4513: leaked_storage: Variable "hurl" going out of scope leaks the storage it points to.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 4511| {
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 4512| printwhat (count, opt.ntry);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 4513|-> continue;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 4514| }
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 4515| else
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
There are two conditional branches, which call continue, without freeing memory potentially allocated and pointed to by"hurl" pointer. In fase "!opt.verbose" is True and some of the appropriate conditions in the following if/else if construction, in which "continue" is called, are also true, then the memory allocated to "hurl" will leak.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Signed-off-by: Tomas Hozza <thozza@redhat.com>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
---
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
src/http.c | 2 ++
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
1 file changed, 2 insertions(+)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
diff --git a/src/http.c b/src/http.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
index 4e0d467a..46fde6f2 100644
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--- a/src/http.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+++ b/src/http.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -4492,6 +4492,7 @@ http_loop (const struct url *u, struct url *original_url, char **newloc,
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
&& (hstat.statcode == 500 || hstat.statcode == 501))
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
{
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
got_head = true;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ xfree (hurl);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
continue;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
}
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
/* Maybe we should always keep track of broken links, not just in
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -4510,6 +4511,7 @@ Remote file does not exist -- broken link!!!\n"));
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
else if (check_retry_on_http_error (hstat.statcode))
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
{
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
printwhat (count, opt.ntry);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ xfree (hurl);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
continue;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
}
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
else
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
2.17.1
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
From c045cdded4e3850724d8bb3a655852948e62c0df Mon Sep 17 00:00:00 2001
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
From: Tomas Hozza <thozza@redhat.com>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Date: Thu, 2 Aug 2018 13:49:52 +0200
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Subject: [PATCH 4/6] * src/utils.c (open_stat): Fix RESOURCE LEAK found by
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Coverity
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Error: RESOURCE_LEAK (CWE-772):
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/utils.c:914: open_fn: Returning handle opened by "open". [Note: The source code implementation of the function has been overridden by a user model.]
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/utils.c:914: var_assign: Assigning: "fd" = handle returned from "open(fname, flags, mode)".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/utils.c:921: noescape: Resource "fd" is not freed or pointed-to in "fstat". [Note: The source code implementation of the function has been overridden by a builtin model.]
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/utils.c:924: leaked_handle: Handle variable "fd" going out of scope leaks the handle.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 922| {
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 923| logprintf (LOG_NOTQUIET, _("Failed to stat file %s, error: %s\n"), fname, strerror(errno));
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 924|-> return -1;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 925| }
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 926| #if !(defined(WINDOWS) || defined(__VMS))
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
This seems to be a real issue, since the opened file descriptor in "fd"
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
would leak. There is also additional check below the "fstat" call, which
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
closes the opened "fd".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Signed-off-by: Tomas Hozza <thozza@redhat.com>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
---
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
src/utils.c | 1 +
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
1 file changed, 1 insertion(+)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
diff --git a/src/utils.c b/src/utils.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
index 0cb905ad..c6258083 100644
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--- a/src/utils.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+++ b/src/utils.c
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -921,6 +921,7 @@ open_stat(const char *fname, int flags, mode_t mode, file_stats_t *fstats)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
if (fstat (fd, &fdstats) == -1)
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
{
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
logprintf (LOG_NOTQUIET, _("Failed to stat file %s, error: %s\n"), fname, strerror(errno));
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ close (fd);
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
return -1;
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
}
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
#if !(defined(WINDOWS) || defined(__VMS))
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
2.17.1
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
From 8b451f9f21cc1b00d1a08116b542fb7bd7589405 Mon Sep 17 00:00:00 2001
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
From: Tomas Hozza <thozza@redhat.com>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Date: Fri, 3 Aug 2018 16:19:20 +0200
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Subject: [PATCH 5/6] * src/warc.c (warc_write_start_record): Fix potential
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
RESOURCE LEAK
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
In warc_write_start_record() function, the reutrn value of dup() is
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
directly used in gzdopen() call and not stored anywhere. However the
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
zlib documentation says that "The duplicated descriptor should be saved
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
to avoid a leak, since gzdopen does not close fd if it fails." [1].
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
This change stores the FD in a variable and closes it in case gzopen()
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
fails.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
[1] https://www.zlib.net/manual.html
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Error: RESOURCE_LEAK (CWE-772):
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/warc.c:217: open_fn: Returning handle opened by "dup".
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/warc.c:217: leaked_handle: Failing to save or close handle opened by "dup(fileno(warc_current_file))" leaks it.
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 215|
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 216| /* Start a new GZIP stream. */
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 217|-> warc_current_gzfile = gzdopen (dup (fileno (warc_current_file)), "wb9");
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 218| warc_current_gzfile_uncompressed_size = 0;
|
|
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11f80c |
\# 219|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Signed-off-by: Tomas Hozza <thozza@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
---
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
src/warc.c | 13 ++++++++++++-
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
1 file changed, 12 insertions(+), 1 deletion(-)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
diff --git a/src/warc.c b/src/warc.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
index 3482cf3b..5ebd04d7 100644
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--- a/src/warc.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+++ b/src/warc.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -203,6 +203,7 @@ warc_write_start_record (void)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
/* Start a GZIP stream, if required. */
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
if (opt.warc_compression_enabled)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
{
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ int dup_fd;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
/* Record the starting offset of the new record. */
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
warc_current_gzfile_offset = ftello (warc_current_file);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -214,13 +215,23 @@ warc_write_start_record (void)
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11f80c |
fflush (warc_current_file);
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11f80c |
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11f80c |
/* Start a new GZIP stream. */
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
- warc_current_gzfile = gzdopen (dup (fileno (warc_current_file)), "wb9");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ dup_fd = dup (fileno (warc_current_file));
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ if (dup_fd < 0)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ {
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ logprintf (LOG_NOTQUIET,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+_("Error duplicating WARC file file descriptor.\n"));
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ warc_write_ok = false;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ return false;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+
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11f80c |
+ warc_current_gzfile = gzdopen (dup_fd, "wb9");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
warc_current_gzfile_uncompressed_size = 0;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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11f80c |
if (warc_current_gzfile == NULL)
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11f80c |
{
|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
logprintf (LOG_NOTQUIET,
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11f80c |
_("Error opening GZIP stream to WARC file.\n"));
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ close (dup_fd);
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11f80c |
warc_write_ok = false;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
return false;
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11f80c |
}
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--
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11f80c |
2.17.1
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11f80c |
|
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11f80c |
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11f80c |
From 2f451dbf4e83c751f6bbba7ed26d90bf275fcbf7 Mon Sep 17 00:00:00 2001
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11f80c |
From: Tomas Hozza <thozza@redhat.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Date: Fri, 24 Aug 2018 16:57:37 +0200
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11f80c |
Subject: [PATCH 6/6] * src/warc.c (warc_write_cdx_record): Fix RESOURCE LEAK
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
found by Coverity
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Error: RESOURCE_LEAK (CWE-772): - REAL ERROR
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/warc.c:1376: alloc_fn: Storage is returned from allocation function "url_escape".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:284:3: alloc_fn: Storage is returned from allocation function "url_escape_1".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:255:3: alloc_fn: Storage is returned from allocation function "xmalloc".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/lib/xmalloc.c:41:11: alloc_fn: Storage is returned from allocation function "malloc".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/lib/xmalloc.c:41:11: var_assign: Assigning: "p" = "malloc(n)".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/lib/xmalloc.c:44:3: return_alloc: Returning allocated memory "p".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:255:3: var_assign: Assigning: "newstr" = "xmalloc(newlen + 1)".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:258:3: var_assign: Assigning: "p2" = "newstr".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:275:3: return_alloc: Returning allocated memory "newstr".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/url.c:284:3: return_alloc_fn: Directly returning storage allocated by "url_escape_1".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/warc.c:1376: var_assign: Assigning: "redirect_location" = storage returned from "url_escape(redirect_location)".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/warc.c:1381: noescape: Resource "redirect_location" is not freed or pointed-to in "fprintf".
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
wget-1.19.5/src/warc.c:1387: leaked_storage: Returning without freeing "redirect_location" leaks the storage that it points to.
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 1385| fflush (warc_current_cdx_file);
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11f80c |
\# 1386|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 1387|-> return true;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 1388| }
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
\# 1389|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
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11f80c |
url_escape() really returns a newly allocated memory and it leaks when the warc_write_cdx_record() returns. The memory returned from url_escape() is usually stored in a temporary variable in other parts of the project and then freed. I took the same approach.
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
|
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
Signed-off-by: Tomas Hozza <thozza@redhat.com>
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
---
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
src/warc.c | 8 +++++---
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
1 file changed, 5 insertions(+), 3 deletions(-)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
diff --git a/src/warc.c b/src/warc.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
index 5ebd04d7..2eb74966 100644
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--- a/src/warc.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+++ b/src/warc.c
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -1364,6 +1364,7 @@ warc_write_cdx_record (const char *url, const char *timestamp_str,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
char timestamp_str_cdx[15];
|
|
![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
char offset_string[MAX_INT_TO_STRING_LEN(off_t)];
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
const char *checksum;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ char *tmp_location = NULL;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
memcpy (timestamp_str_cdx , timestamp_str , 4); /* "YYYY" "-" */
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
memcpy (timestamp_str_cdx + 4, timestamp_str + 5, 2); /* "mm" "-" */
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
@@ -1382,18 +1383,19 @@ warc_write_cdx_record (const char *url, const char *timestamp_str,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
if (mime_type == NULL || strlen(mime_type) == 0)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
mime_type = "-";
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
if (redirect_location == NULL || strlen(redirect_location) == 0)
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
- redirect_location = "-";
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ tmp_location = strdup ("-");
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
else
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
- redirect_location = url_escape(redirect_location);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ tmp_location = url_escape(redirect_location);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
number_to_string (offset_string, offset);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
/* Print the CDX line. */
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
fprintf (warc_current_cdx_file, "%s %s %s %s %d %s %s - %s %s %s\n", url,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
timestamp_str_cdx, url, mime_type, response_code, checksum,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
- redirect_location, offset_string, warc_current_filename,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ tmp_location, offset_string, warc_current_filename,
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
response_uuid);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
fflush (warc_current_cdx_file);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
+ free (tmp_location);
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
return true;
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
}
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
--
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
2.17.1
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
11f80c |
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